Important Instructions for the School Principal (Not to be printed with the question paper) ) This question paper is strictly meant for use in school based SA-II, March-202 only. This question paper is not to be used for any other purpose except mentioned above under any circumstances. 2) The intellectual material contained in the question paper is the exclusive property of Central Board of Secondary Education and no one including the user school is allowed to publish, print or convey (by any means) to any person not authorised by the board in this regard. ) The School Principal is responsible for the safe custody of the question paper or any other material sent by the Central Board of Secondary Education in connection with school based SA-II, March-202, in any form including the printouts, compact-disc or any other electronic form. 4) Any violation of the terms and conditions mentioned above may result in the action criminal or civil under the applicable laws/byelaws against the offenders/defaulters. Note: Please ensure that these instructions are not printed with the question paper being administered to the examinees. Page of 5
SUMMATIVE ASSESSMENT II, 202 II, 202 SCIENCE / Class IX / IX 47005 Time allowed : hours Maximum Marks : 90 90 General Instructions : (iv) (v) (vi) (vii) (viii) (ix) The question paper comprises of two Sections, A and B. You are to attempt both the sections. All questions are compulsory. There is no overall choice. However, internal choice has been provided in all the five questions of five marks category. Only one option in such questions is to be attempted. All questions of Section-A and all questions of Section-B are to be attempted separately. Question numbers to in Section-A are one mark questions. These are to be answered in one word or in one sentence. Question numbers 4 to 7 in Section-A are two marks questions. These are to be answered in about 0 words each. Question numbers 8 to 9 in Section-A are three marks questions. These are to be answered in about 50 words each. Question numbers 20 to 24 in Section-A are five marks questions. These are to be answered in about 70 words each. Question numbers 25 to 42 in Section-B are multiple choice questions based on practical skills. Each question is a one mark question. You are to select one most appropriate response out of the four provided to you. (iv) (v) (vi) 4 7 0 (vii) 8 9 50 (viii) 20 24 70 (ix) 25 42 Page 2 of 5
SECTION-A /. Define the atomic mass unit. 2. Mention any one characteristic feature of saprophytes.. What are CFCs? CFCs 4. Is the given figure of angiosperm plant a dicot or monocot? Differentiate between dicot and monocot on the basis of venation in leaf and number. of cotyledons in the seed. 2 5. List any four essential factors that must be taken care of by an individual for keeping good health. 2 6. The cutting tools have sharp edges? Give reason. 2 7. Given below are a few situations study them and state in which of the given cases work is said to be done. Give reason for your answer. A person pushing hard a huge rock but the rock does not move. Page of 5 2
(iv) A bullock pulling a cart upto km on road. A girl pulling a trolley for about 2 m distance. A person standing with a heavy bag on his head. (iv) 2 m km 8. Explain the difference between an atom and an ion. Write the electronic configuration of atom and positive ion of 2 Write the compound formed when ion of element X combines with carbonate ion. 2 X X 9. State Bohr s postulates about the model of an atom Write the electronic configuration for an atom whose atomic number is and mass number 2, show it by drawing a figure. 2 0. () The average atomic mass of a sample of an element x is 5.5u. What are the percentages of isotopes 7 7 X and 5 X in the sample. 7 (2) Write any two applications of isotopes. () X 5.5 u 5 7 X 7 7 X (2). Write two characteristic features of phylum to which Ascaris belongs. Name the parasitic Page 4 of 5
worm causing elephantiasis. 2. Draw a well labeled diagram of paramecium. Name the kingdom to which it belongs.. Name diseases which are caused by (two for each) virus bacteria protozoa 4. Define the term relative density of a substance. Relative density of silver is 0.8, the density of water is 0 kg/m. What will be the density of silver in S.I. units? 0.8 0 kg/m S.I. 5. State Law of conservation of energy and express it in the form of an equation for a body of mass m falling from a point A at height h above the ground at A C at a height h from ground B. h A m A h C Page 5 of 5
B 6. A boy of mass 50 kg runs up a staircase of 45 steps in 9 s. If the height of each step is 5 cm, find his power. Take g 0ms 2. 50 kg 45 9 s 5 cm g 0ms 2 7. A sound wave with frequency higher than 20 khz is not audible for human ear. Answer the following in respect of this statement. What is the term used for such a sound? Name two organisms producing sound in this range. Write an application of such a wave. 20 khz 8. Atmosphere is essential for life why. List three reasons in support of this statement. 9. Write the various components of soil. Fertilizers and pesticides lead to soil pollution. This statement. List two reasons to justify. 20. Write the chemical formulae of : Calcium Sulphate Magnesium Oxide Potassium Chloride (iv) Sodium Hydroxide (v) Calcium Oxide (vi) Hydrogen Sulphide. Define Avogadro number and give its value. Calculate the number of atoms in 52 g of Helium. (atomic mass of Helium is 44) 5 Page 6 of 5
(iv) (v) (vi) ( 4u ) OR / Convert into mole 2 g of oxygen gas 22 g of carbondioxide Write the names of the compounds represented by the following formulae : NaBr Al 2 O 52 g ZnNO (iv) HCl (v) NaCl (vi) CaCO 2 g 22 g NaBr Al 2 O ZnNO (iv) HCl (v) NaCl (vi) CaCO 2. State five characteristic features of vertebrate animals. Name the five classes in which vertebrates are grouped giving an example of each class. 5 OR/ To which class of animalia does the housefly belong? Mention any three characteristic features of this class of animals. Give two other examples of this class of animals. 22. Define work in terms of science and explain it mathematically. Write its SI units. A pair of bullocks exerts a force of 40 N on a plough. The field being ploughed is 5 m long. How much work is done in ploughing the length of the field? Page 7 of 5 5
Calculate the energy possessed by an object of mass 5 kg moving with uniform velocity of 4 ms. SI 40 N 5 m 4 / 5 OR/ Explain the energy transformation in the following examples An arrow thrown by stretching a bow. A toy car moves when its key is wound. A slinky vibrates when compressed and then released. Calculate the work done when a force of 7N is applied on an object and displacement of 8 m takes place in the direction of the force. 7N 8 m 2. Define the following terms and give their SI unit. Time Period Wavelength A source of sound emits a wave of wavelength 2.9m. Find the frequency of wave emitted by the source. Velocity of sound wave is 40m s-? SI 2.9 m 40 m s- OR/ Does sound follow the same laws of reflection as light does? Explain. Give two practical applications of reflection of sound waves. 24. What is the green house effect? Name the atmospheric gas, which lead to it and what is impact of it on global climate? Give a schematic representation of the Water cycle, Name the main processes involved in it. 5 5 Page 8 of 5
OR / The atmosphere acts as a blanket. How? Name the two forms of oxygen found in the atmosphere. Write the biotic and abiotic components of our environment. SECTION - B / 25. Barium chloride solution appears : blue blue green yellow (d) colourless (d) 26. Which of the following is NOT required while conducting the experiment to verify law of conservation of mass? solution of barium chloride solution of sodium sulphate solution of sodium chloride (d) balance for weighing (d) 27. In the given figure, a student wants to label spiracle in cockroach. Select the label that shows it : Page 9 of 5
A B C (d) D ददए गए आर ख म एक व द य थ श व सर ध र (स ऩ इर कऱ) न म दकत करन च हत ह इसक दर न ऱ न म कन च ननए : A B C (d) D 28. Which one of the following represents the non-flowering seeded plants? Pteridophyta Gymnosperms Angiosperms (d) Bryophytes (d) 29. Burrowing adaptation in earthworm is because of the presence of : bristles/setae body wall muscles cylindrical body (d) all the above क च ए म व ऱ ख दन क अन क ऱत ज सक उऩजस थनत क क रण ह त ह ह ह : र क स कड़ ऱ / नसट द ह ऩ नर य ऱन क र द ह (d) ऊऩर ददए गए सभ 0. To which group does Spirogyra belong? Thallophyta Fungi Bryophyta (d) pteridophyta (d) Page 0 of 5
. Four students A, B, C and D are observing the venation of leaves and petals of flowers of a pea plant. They reported their observations that pea plant has : (A) reticulate venation and trimerous flower (B) reticulate venation and pentamerous flower (C) Parallel venation and trimerous flower (D) Parallel venation and pentamerous flower The student whose observation is correct is : (A) (B) (C) (d) (D) A, B, C D (A) (B) (C) (D) (A) (B) (C) (d) (D) 2. Four students A, B, C and D are observing the feeding habits of all the developmental stages in the life cycle of mosquito. Their observation that the stage in which it feeds on animal blood is :- (A) (B) (C) (D) pupa egg larva adult The correct observation is of student :- A B C (d) D A, B, C D (A) (B) (C) (D) A B C (d) D. A measuring cylinder which measures in cm shown below is used to measure the level of water before and after immersing a solid in it. The volume of the given solid is : Page of 5
2.2 cm 2.4 cm 2.8 cm (d).0 cm cm 2.2 cm 2.4 cm 2.8 cm (d).0 cm 4. In an experiment to determine the density of a given solid, a student made the following observations : Mass of solid = 20 g Initial reading of water level in measuring cylinder = 45 ml Reading of water level in measuring cylinder when the solid is completely immersed in water = 69 ml The density of the solid based on these observations is : 2.88 kg/m 64 g/ml 5 g/ml (d) 0.05 kg/m = 20 g = 45 ml = 69 ml 2.88 kg/m 64 g/ml 5 g/ml (d) 0.05 kg/m 5. Using a spring balance, a given solid is first weighed in the air. It is then weighed by immersing fully in water in each of the three vessels containing water as shown. The apparent weight of the solid will be : Page 2 of 5
least in A least in B least in C (d) equal in all A B C (d) 6. When a solid body is fully immersed in a liquid, the apparent loss in its weight is : equal to the weight of the liquid displaced. more than the weight of the liquid displaced. less than the weight of the liquid displaced. (d) depends upon the manner in which the body is immersed in the liquid. (d) 7. An iron cuboid of dimensions 00 cm 50 cm 0 cm when placed on a bed of sand will depress the sand bed the least, when it is made to lie on the face having dimensions : (d) 00 cm 0 cm 00 cm 50 cm 50 cm 0 cm the pressure will be same for all the surfaces 00 cm 50 cm 0 cm व म ओ ऱ ऱ ह क घन भ क ढ ऱ र त ऩर रखन ऩर स स कम द व त ऩड़ ग उसक ननम न व म ओ ऱ सतह क र त ऩर रख एग : 00 cm 0 cm 00 cm 50 cm 50 cm 0 cm Page of 5
(d) सभ सतह स एक सम न द ऩड़ ग 8. To observe and compare the pressure exerted by solid iron cuboid in its upright position, student A placed the iron cuboid gently on the loose sand while B placed it on the surface of table top. Who will observe the exerted pressure by the cuboid easily? A B Both A and B (d) Neither A nor B एक व द य थ A न ऱ ह क घन भ क ध र स ढ ऱ र त ऩर रख तथ द सर व द य थ B न म ऩर रख क नस व द य थ घन भ द व र ऱग ए गए द क आस न स प र ज त कर ग? A B द न A तथ B (d) न A न B 9. When the sound wave is allowed to fall normally on the reflecting surface, the angle at which the intensity of sound will be maximum is : 0 60 0 (d) 90 0 60 0 (d) 90 40. In an experiment to verify the laws of reflection of sound we need : a polished and smooth surface hard surface only a polished and rough surface (d) both and only (d) 4. Vishal produces a pulse in a stretched slinky by gently giving a jerk to its rings at one end which of the following statement will be wrong to describe the pulse _ it is a longitudinal pulse it is a transverse pulse it moves in the form of compression and rarefaction (d) the rings vibrate in the direction of pulse. Page 4 of 5
(d) 42. The stop-watch used by a student to measure velocity of a pulse in a slinky was of least count 0.sec. He stops the stop-watch when a pulse has made journeys from one end to the other of the slinky. He finds seconds-hand to be at 47 th division. Which of the following would be correct time noted by him. 47 sec 4.7 s. 0.47s. (d) 4.07s. 0.s 47 47 sec 4.7 s. 0.47s. (d) 4.07s. - o O o - Page 5 of 5